メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.31454013514 43.0899694927418, 141.314849600744 43.0902093827983, 141.315016337495 43.0903571700086, 141.314666509742 43.0905877306517, 141.314467989449 43.0907124168443, 141.314167230431 43.0909153160746, 141.313970430546 43.0910402972527, 141.313734966766 43.0911898577245, 141.313473894224 43.0909606998357, 141.31317694068 43.0906680916169, 141.313119182066 43.0906171222993, 141.312694702727 43.0902425907983, 141.313313102584 43.0898624664606, 141.313937714794 43.0894520085633, 141.313961350028 43.089437432301, 141.313990967925 43.0894648933554, 141.314179545845 43.089652666831, 141.31454013514 43.0899694927418)) ^^http://www.opengis.net/ont/geosparql#wktLiteral